Information about the .dd (dd) file type

This is one of two possibilities that we have on file for the .dd file extension, follow this link to view both possibilities.

Below is all the information we have available on file about the .dd (dd) file type.

.dd
Macintosh Disk Doubler compressed archive file. A compressed file format used on the Mac. Now generally considered to be obsolete. Each .dd file holds the compressed contents of a single file (rather than being a container for one or more files liked most other compressed archive formats).

Where this is available we would like to include file format information on .dd files, as well as information on how to view or open files of type .dd. If you know of any information which we have missed then please let us know.